| 10774808 |
Method of operating a wind turbine without grid connection and wind turbine |
Patrick Achenbach |
2020-09-15 |
| 7787266 |
Method for operating a frequency converter of a generator |
Detlef Menke |
2010-08-31 |
| 7586206 |
Wind turbine and method for operating same |
Werner Gerhard Barton, Robert William Delmerico, Nicholas Wright Miller |
2009-09-08 |
| 7504738 |
Wind turbine and method for operating same |
Werner Gerhard Barton, Robert William Delmerico, Nicholas Wright Miller |
2009-03-17 |
| 7471011 |
Wind turbine over-voltage exposure |
— |
2008-12-30 |
| 7471007 |
Method for operating a wind power plant and method for operating it |
Andreas Bücker, Henning Lütze |
2008-12-30 |
| 7321221 |
Method for operating a wind power plant and method for operating it |
Andreas Bücker, Henning Lütze |
2008-01-22 |
| 7168251 |
Wind energy turbine |
— |
2007-01-30 |
| 6921985 |
Low voltage ride through for wind turbine generators |
Henning Luetze, Andreas Buecker, Till Hoffmann, Ralf Hagedorn |
2005-07-26 |
| 4981510 |
Process and apparatus for the production of ferrochromium |
Klaus Ulrich |
1991-01-01 |
| 4722710 |
Life preserver |
Klaus Hagen, Heinz Milbrath |
1988-02-02 |
| 4629506 |
Process for the production of ferrochromium |
Klaus Ulrich, Dieter Neuschuetz, Thomas Hoster, Hermann Doerr, Dietrich Radke |
1986-12-16 |
| 4599068 |
Apparatus for preheating granular ore |
Klaus Ulrich |
1986-07-08 |
| 4581061 |
Method for reducing oxidic iron ores in a rotary kiln |
Klaus Ulrich |
1986-04-08 |
| 4576638 |
Process for the production of ferromanganese |
Hermann Doerr, Thomas Hoster, Dieter Neuschuetz, Dietrich Radke, Klaus Ulrich |
1986-03-18 |
| 4389040 |
Apparatus for separating a sponge iron product produced in a rotary furnace |
Klaus Ulrich, Reinhard Herbrig |
1983-06-21 |
| 4353534 |
Apparatus for supplying gas to a revolving cylindrical furnace |
Henri F. Seelig |
1982-10-12 |
| 4209322 |
Method for processing dust-like matter from metallurgical waste gases |
Karl-Heinrich Vopel, Gunter Meyer |
1980-06-24 |
| 4189314 |
Method of utilizing waste dust and waste sludge from blast furnaces and steel works |
Ludwig Fiege, Hans-Werner Hohle, Klaus Ulrich |
1980-02-19 |
